Spring Cloud Gateway通常使用注册中心作为服务发现,但在Kubernetes里面,由于K8S已经集成了服务注册与发现功能,不必要再另外使用注册中心了,而且,还可以使用K8S的服务监控对服务进行监控。
 本来按照网上教程,升级到最新版的springboot3.x,结果发现无法发现服务。后来按着官方指引,终于成功了,现分享给出来。
引进必要的依赖
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-bootstrap</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-gateway</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-kubernetes-fabric8</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-kubernetes-fabric8-loadbalancer</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>
 
主程序
@SpringBootApplication
@EnableDiscoveryClient
public class IRMPGatewayApplication {
    public static void main(String[] args) {
        SpringApplication.run(IRMPGatewayApplication.class, args);
    }
}
 
配置
spring:
  cloud:
    gateway:
      routes:
        - id: base-service-route # 路由的id,要保证其唯一性
          uri: lb://irmp-base-service # lb 表示 从nacos 中按照名称获取微服务,并遵循负载均衡策略, report-service 即微服务注册名
          predicates:
            - Path=/base/v2/**  # 使用断言
          filters:
        #            - StripPrefix=1 # 去掉路径前n个前缀
      discovery:
        locator:
          enabled: true
          lower-case-service-id: true
    kubernetes:
      loadbalancer:
        mode: SERVICE
logging:
  level:
    org.springframework.cloud.gateway: trace










